Epidote group explained
| Epidote group |
| Category: | Sorosilicates |
| Boxbgcolor: | - 7a9856
|
| Boxtextcolor: | white |
| Imasymbol: | Ep |
| System: | Monoclinic |
| Class: | Prismatic (2/m)
(same H–M symbol) |
| Symmetry: | P21/m |
| Color: | Yellow-green, pistachio green, greenish black, brownish-green, green, black |
| Habit: | Prismatic, fibrous, druse/encrustation, massive |
| Twinning: | On [100] |
| Cleavage: | perfect and imperfect |
| Mohs: | 6–7 |
| Luster: | Vitreous |
Epidotes are a group of sorosilicate minerals that are common in igneous and metamorphic rocks.[1] [2] [3]
Epidote member species
- Clinozoisite,
- Epidote,
- Epidote-(Sr),
- Hancockite,
- Heflikite,
- Mukhinite,
- Niigataite,
- Piemontite,
- Piemontite-(Pb),
- Piemontite-(Sr),
- Tweddillite,
Notes and References
- Armbruster. T.. Bonazzi. P.. Akasaka. M.. Bermanec. V.. Chopin. C.. Gieré. R.. Heuss-Assbichler. S.. Liebscher. A.. Menchetti. S.. Pan. Y.. Pasero. M.. 2006. Recommended nomenclature of epidote-group minerals. European Journal of Mineralogy. 18. 5. 551−567. 10.1127/0935-1221/2006/0018-0551. free. 2006EJMin..18..551A .
- Kartashov. P. M.. 2014. Classification diagram for REE-bearing members of the epidote group based on crystallochemical data. Proceedings of the Workshop on Acessory Minerals. 25−26.
- Warr. L.N.. 2021. IMA–CNMNC approved mineral symbols. Mineralogical Magazine. 85. 3. 291–320. 10.1180/mgm.2021.43. 2021MinM...85..291W. 235729616. free.
